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HDMI stands for “High-Definition Multimedia Interface”. HDMI cable transmits the highest resolution signal for both video and audio, including a variety resolution of 480i, 480p, 720p, 1080i and 1080p. HDMI cable carries both video and audio, including 5.1 surround sound, on a single cable connection. If the broadband connection is fast and the entertainment system (TV or computer) has HDMI input, this cable will deliver the best overall experience.
There is a growing number of products that use HDMI cable to achieve a high clarity multimedia experience. A few examples of these products include computers, video cameras, smart phones, high-definition TVs, DVD players and HD-DVD players.

The different types of HDMI cables include:
The standard HDMI cable, which has similar connection for input and output, is used for a classic multimedia experience. It transmits resolution up to 1080i or 720p.
The HDMI cable with Ethernet maximizes resolution to 3840 x2160p and is most commonly used in digital theaters.
The HDMI Ethernet channel allows for an Ethernet connection between two HDMI compliant devices, creating an internet connection.
The HDMI mini/micro cable is used with smaller devices including smart phones and small video cameras to accommodate their smaller inputs.

HDMI cables come in different thicknesses (measured in AGW). The AWG standard defines the thickness of the HDMI cable is and how long the cable can carry information without losing signal. The lower the AWG number, the better the connection. But keep in mind that higher AWG may provide similar clarity depending on the length it needs to carry the data.

Like everything else, the longevity of HDMI cable depends on maintenance. To prolong its proper function, make sure the cable is properly connected on both ends; Put it away from the path of travel, so it is not stepped on and make sure it lays flat; use mild force when inserting and removing the cable; Do not tug too hard on it, to avoid breaking connections inside the wire; make sure to insert the cable in the correct orientation or the cable may be damaged; keep dust away from HDMI cable.